JPH049002Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a snow-melting water nozzle for dissolving snow by spraying underground water, seawater, etc. onto a road surface.

(Prior Art) Generally, this type of water nozzle is configured so that a water flow supplied to a water supply hole passes through a cavity and is sprayed from a water spout. Further, since the water spray nozzle configured in this way has a water sprinkling force from the water sprinkling port that is too strong or varies, it is known that the water spray nozzle is provided with a pressure regulating section and a rectifying section to prevent this. For example, as in Japanese Patent Publication No. 51-12336, a rectifier pipe is provided around the pressure regulating valve, and the water flow supplied to the water supply hole is pressure regulated by the pressure regulating valve, then rectified by the rectifier pipe, and then passes through a cavity and exits from the water spout. Configured for watering.

(Problems to be solved by the invention) The conventional technology described above has problems in spraying a small amount of water almost uniformly, and it is difficult to adjust the amount to a small amount using a pressure regulating valve, and the rectification effect is not good. I was hanging out.

As a means of solving this problem, Japanese Utility Model Publication No. 52-7847 discloses that a check valve seat is provided at the top of the flow channel, and a horizontal communication hole is provided between the valve seat side and the gap chamber. A water sprinkling nozzle has been proposed in which a water sprinkling hole is connected to the void chamber. However, in this water nozzle,
Even if the water pressure is low or high, water is restricted by the horizontal communication holes, so it is not possible to respond to water pressure fluctuations.

Therefore, an object of the present invention is to provide a water spray nozzle for snow melting that allows a small amount of moderate water to flow out without scattering.

[Structure of the idea]

(Means for solving the problem) The present invention has a rectifying chamber in which a fluid can be seated connected to the upper part of the water supply hole provided at the lower part of the nozzle body, and a rectifying chamber in which the lower end communicates with the upper part of the rectifying chamber. A first communicating path is provided by a guide tube, the lower end of the guide tube is provided so that the fluid can be brought into pressure contact with the guide tube, and a groove for water passage is formed in the lower end, and the upper end of the first communicating path is provided with a groove for water passage. A second communicating path is provided outside the rectification chamber, a hollow portion having an annular plane is provided outside the second communicating path, and the second communicating path is provided at the bottom of the hollow portion.
A water spout having an annular plane is provided on the upper surface of the nozzle body, communicating with the lower end of the communication passage and communicating with the cavity.

(Function) A rectified fluid floats up due to the pressure of the water flow supplied from the water supply hole and blocks a portion of the upper opening of the rectification chamber, and the rectified water flow is supplied little by little to the communication passage and sprayed from the water sprinkling port.

(Example) An example of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 to 3, reference numeral 1 denotes an outer nozzle body connected to a water pipe 3 via a gasket 2, and is provided with a cavity 5 opening upward and communicating with a water supply hole 4. Reference numeral 6 denotes an inner nozzle body attached to the bottom of the cavity 5 by a screw part 7, and a water sprinkling port opened all around between the outer circumferential surface of the inner nozzle body 6 and the inner circumferential surface of the outer nozzle body 1. 8 is formed in an annular shape on the upper surface. The inner nozzle body 6 consists of a lower inner nozzle body 6A screwed onto the bottom of the cavity 5 and formed into a cylindrical shape, and an upper inner nozzle body 6B having a tool receiving groove 9 in the head. A receiving plate 10 is interposed between the receiving plates 6B and a gap 11 is formed between the upper surface of the receiving plate 10 and the inner nozzle body 6B. A first hole having a diameter smaller than that of the water supply hole 4 is provided in the center of the receiving plate 10 by a threaded portion 12.
A guide cylinder 14 having a communication passage 13 is vertically installed inside the lower inner nozzle body 6B.
A rectifier pipe 16 forming a rectifier chamber 15 having a diameter larger than the water supply hole 4 is vertically installed at the lower end of the water supply hole 4 by a threaded portion 17 . Further, a through hole 18 is provided at the lower end of the rectifying pipe 16.
A spherical rectifying fluid 19 is housed in the rectifying chamber 15 so as to be seated at the upper end of the through hole 18 . A plurality of grooves 21 are formed on the circumferential surface of the lower end of the guide tube 14 so that the flow regulator 19 does not close even if the flow regulator 19 comes into pressure contact with the lower end opening 20 of the guide tube 14 . In addition, the lower inner nozzle body 6B and the receiving plate 10
A plurality of small-diameter second communication passages 13A that communicate with each other are formed at the periphery of the cavity 5 and the gap 11. Further, a second communication passage 13A communicating with the upper end of the first communication passage 13 is provided outside the rectification chamber 15 and the first communication passage 13, and a hollow portion 5 having an annular plane is connected to the second communication passage. 13A, and the second
The lower end of the communication path 13A is communicated with the lower end of the communication path 13A. and,
The water flow forced into the outer nozzle body 1 from the water supply pipe 3 through the water supply hole 4 flows into the rectification chamber 15 through the through hole 18, and the water pressure causes the rectification fluid 19 to flow into the lower end opening 20 of the guide tube 14. are brought into pressure contact and flow into the guide cylinder 14 through the plurality of grooves 21 to reach the gap 11 at the upper end,
Next, it flows downward through the communication passage 13 with a small diameter, flows out toward the bottom wall of the cavity 5, and then flows 360° around the entire circumference from the water sprinkling port 8 formed between the inner and outer nozzle bodies 6 and 1. Water is sprinkled. In this case, it flows into the rectifying chamber 15 that is pressure fed from the water pipe 3, is throttled by the rectifying fluid 19, is sent to the communicating path 13 through the small diameter groove 21, and is changed direction in the gap 11 to form the cavity 5. Water flows inward and is evenly sprayed from the water sprinkling ports 8 which are open in the circumferential direction without scattering. For this reason, water is effectively sprinkled in relatively small amounts with a stable watering force. In addition, since the rectifying fluid 19 floats within the rectifying chamber 15, the rectifying fluid 19
It is possible to control changes in the pressure of the water flow pumped into the tank. Furthermore, since the water flowing out from the communication passage 13 flows toward the bottom wall of the cavity 5 and is then guided toward the upper opening, sand and the like in the cavity 5 are agitated by the water flow flowing out from the communication passage 13A. ,
Since water is sprinkled at the same time, sand and the like in the cavity 5 are actively discharged.

Further, a second communication passage 13A communicating with the upper end of the first communication passage 13 is connected to the rectification chamber 15 and the first communication passage 13A.
A hollow portion 5 having an annular plane is provided outside the second communicating path 13A, and the second communicating path 13 is provided at the bottom of the hollow portion 5.
By connecting the lower ends of A, the snow-melting water nozzle can be made smaller, and construction work such as installation on roads, parking lots, etc. can be easily performed.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, although the fluid regulator is shown as being spherical, its shape may be selected as appropriate, and although the lower inner nozzle body is screwed onto the outer nozzle, it may be integrally formed.

[Effect of idea]

In the present invention, a rectifying chamber in which a fluid can be seated communicates with the upper part of the water supply hole provided at the lower part of the nozzle body, and a first communicating path communicating with the lower end of the upper part of the rectifying chamber is formed by a guide tube. The lower end of the guide tube is provided so that the fluid can be brought into pressure contact with the guide cylinder, and a groove for water passage is formed in the lower end, and the second communication path communicating with the upper end of the first communication path is connected to the rectifier. A hollow portion having an annular plane is provided outside the chamber, and a hollow portion having an annular plane is provided outside the second communication path, and the second
The lower end of the communication passage is connected to the hollow part, and a water sprinkling port with an annular plane is provided on the upper surface of the nozzle body, so that a small amount of water can be stably discharged all around the road surface etc. It is possible to provide a water spray nozzle for snow removal that enables good snow removal and can be further downsized.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention, FIG. 2 is a sectional view taken along the line A--A in FIG. 1, and FIG. 3 is a plan view. DESCRIPTION OF SYMBOLS 1, 6... Nozzle body, 3... Water supply hole, 5... Cavity part, 13, 13A... Communication path, 15... Rectification chamber, 19... Fluid regulation.

Claims (1)

[Scope of utility model registration request] A rectifying chamber in which a fluid can be seated communicates with the upper part of the water supply hole provided at the lower part of the nozzle body, and a first communicating path communicating with the lower end is provided in the upper part of the rectifying chamber by means of a guide cylinder. The lower end of the cylinder is provided so that the regulating fluid can be brought into pressure contact therewith, and a groove for water passage is formed in the lower end, and a second communicating passage communicating with the upper end of the first communicating passage is connected to the outside of the regulating chamber. A hollow portion having an annular plane is provided outside the second communicating path, and the lower end of the second communicating path is communicated with the lower part of the hollow portion, and the lower end of the second communicating path is communicated with the hollow portion to communicate with the nozzle body. A water spray nozzle for snow removal characterized by having a water sprinkling spout with an annular flat surface on the top surface.